I never liked the narrative of a "broken economy" in articles like these. I think it would be more productive to talk about a process of reversion to the type of feudalism - and associated inequality - that has been the norm for most of human history. That would be a better starting point for discussions about how to change fundamental policies and institutions to promote the desired outcomes.
I doubt feudalism has been the norm for most of human history. It was the system preceding the current one yes but not some sort of "default" or "natural" system though.
TLDR;
Final line of the essay: "If you want to create a workers’ utopia, a better world for all, seize the wealth and income."
So, an outright communist. Move along.
Wealth inequality is fairly meaningless, what matters a lot more is income inequality, and the best metric in my opinion is income mobility.